I came to this very late and after two days I have a grid fill. Also, I have seen enough to agree with borealis’ point that “fully reveal” would have been better in the pre-ramble. I am in the 42 letter camp and have a consistent method of effecting the move that results in the full revelation however, I find myself wanting to use an inconsistent mix of moves to yield the revelation and to make explicit an element (although I’m aware of at least one explanation that would defend leaving unresolved what I should like to see resolved). However, given the apparent fixed eccentricity, perhaps I am asking too much. I may rue my words when the solution is published, but at the moment I’m somewhat underwhelmed: a great idea imperfectly executed – but, at the risk of being pompous or patronising or both, our reach should exceed our grasp on occasion, so thanks to Jaques for an enjoyable puzzling experience.